Multi-component resin system

摘要

The invention relates to a multi-component resin system comprising (A) a hydroxyl functional unsaturated polyester resin comprising fumaric acid building blocks as unsaturated dicarboxylic acid building blocks and having a hydroxyl value of from 40 up to and including 150, (B) a hydroxyl functional saturated polyester resin comprising cyclohexane dicarboxylic acid building blocks as saturated dicarboxylic acid building blocks and having a hydroxyl value of from 40 up to and including 150, (C) a polyisocyanate that has on average at least 1.75 isocyanate groups, (D) an ethylenically unsaturated compound copolymerizable with (A) and optionally with (B), and (E) a radical initiator, whereby the molar ratio of